Did I ever say that I couldn't without a nail gun? Seems like a rather unfair assumption. Also,, guys, the question was a or b, there's no need to insult me because I was asking a or b. Now you're right, I could use a hammer and a nailset, but given that there's several hundred feet of trim, I dont want to.
Again, the question is multiple choice between A and B. If your answer isn't A or B, kindly take your insults somewhere else. You have your way, I have mine, that doesn't make me lazy or an idiot
You could 'cheat' somewhat and predrill the holes after you have found and marked the studs and be done VERY quickly with just a hammer and nails.
One of the guys that gave me some of my first work as a trim carpenter REFUSED to allow any guys working under him to use any sort of nailguns until they had mastered their hammer first.
Newbies always started off doing baseboard in closets. Once they stopped doofing the baseboard in the closets they got to come out and do the baseboards in the main areas.
Then he would put 'em on crown moulding and make them learn to use their hammer and nailset ABOVE their head...
If you got all of THAT down he would have you hammering oak treads down as he cut them and put them in place...
When I would 'doof' the wood with my hammer, He would say stuff like, "What do you got against that wood 'aside of your hammer?".
As far as your project is concerned: You could get away with an even smaller nailgun and hole left to fill just by using a little glue. Nails should only really 'hold it' until the glue dries...